Re: [Qemu-devel] [PATCH 2/3] qobject: assume base of a qobject is at offset 0

[Marc-André Lureau]

Hi

On Wed, Mar 21, 2018 at 5:00 PM, Paolo Bonzini <address@hidden> wrote:
> On 21/03/2018 16:55, Marc-André Lureau wrote:
>> That would work with an anonymous union though:
>>
>> struct QObject {
>>     union {
>>         QType type;
>>         QType base;
>>     };
>>     size_t refcnt;
>> };
>>
>> If it's acceptable, I think I'll take this approach.
>
> You don't need QEMU_GENERIC at all then, don't you?

Ah ah, that's what I thought too, but the type of QObject * &x->base
isn't QObject * :)

I don't think we can fool it there (without loosing some type safety)